socialite -
A person who goes to fashionable parties and is often written about in the newspapers, etc.
Wikipedia
A socialite is a person who participates in social activities and spends a significant amount of time entertaining and being entertained. Socialites are usually wealthy. Socialites in the past used their social skills and connections to promote and raise funds for various charitable or philanthropic activities.
OmegaWiki Dictionary
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socialite A socially prominent person who is well-known in fashionable society.
